An anonymous reader writes "Bringing the real world into the brain scanner, researchers say they can now determine the action a person was planning, mere moments before that action is actually executed. In the study at the University of Western Ontario, human subjects had their brain activity scanned using functional magnetic resonance imaging (fMRI) while they performed one of three hand movements. By using the signals from many brain regions, the researchers could predict, better than chance, which of the actions the volunteer was merely intending to do, seconds later."
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